Regeneration and promotion of catalytic activity of zeolites for DME conversion to olefin

A. Muramatsu, M. Nakaya, K. Omata, M. Yamada, H. Kobayashi, Y. Yamazaki

研究成果: Conference contribution

抄録

Regeneration of H-ZSM-5 catalyst was tested on dimethyl ether (DME) conversion to olefin. The catalyst life was stabilized by the regeneration for a number of reactions. Since the decreases in both acid amount and surface area were observed, the regeneration must cause the change of structure, that is, dealumination. To confirm this assumption, dealuminated H-ZSM-5 was synthesized by steaming treatment so that the catalyst life was prolonged. The dealumination from zeolite framework proceeded via the formation of "unstable Al species" and their transformation to extra-framework. The change in HCl/Si molar ratio and preheating treatment influenced the particle size of MFI-type ferrisilicates (FeMFI), whose catalyst lifetime increased due to a decrease in size or an increase in acid site density. The introduction of Fe3+ in substitution for Al3+ enhanced light olefin selectivity. This is an abstract of a paper presented at the 23rd Annual Saudi-Japan Symposium on Catalysts in Petroleum Refining and Petrochemicals 2013 (Dhahran, Saudi Arabia 12/2-3/2013).

本文言語English
ホスト出版物のタイトルKing Fahd University of Petroleum and Minerals, Research Institute - 23rd Annual Saudi-Japan Symposium on Catalysts in Petroleum Refining and Petrochemicals 2013
出版社King Fahd Univ. of Petroleum and Minerals Res. Inst.
ページ50-59
ページ数10
ISBN(印刷版)9781629938080
出版ステータスPublished - 2013
イベント23rd Annual Saudi-Japan Symposium on Catalysts in Petroleum Refining and Petrochemicals 2013 - Dhahran, Saudi Arabia
継続期間: 2013 12 22013 12 3

出版物シリーズ

名前King Fahd University of Petroleum and Minerals, Research Institute - Annual Catalysts in Petroleum Refining and Petrochemicals Symposium Papers

Other

Other23rd Annual Saudi-Japan Symposium on Catalysts in Petroleum Refining and Petrochemicals 2013
国/地域Saudi Arabia
CityDhahran
Period13/12/213/12/3

ASJC Scopus subject areas

  • 触媒
  • 化学 (全般)
  • 燃料技術
  • エネルギー工学および電力技術

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